We can provide you with comprehensive Speaker Box Calculator for online creating a high performance subwoofer enclosure. Build a ported box, sealed box for your low-frequency speaker. Make a subwoofer enclosure plan. Calculate a speaker box volume, port length and other parameters without getting confused in formulas.
Everyone understands that the box is an indispensable part for the proper operation of the low-frequency speaker, which is designed to work in a certain volume, without it, the subwoofer speaker will simply chase the air, while the efficiency will decrease several tens of times.
Without a box, due to the lack of the necessary damper, the speaker is very easy to pull out of the stroke, this is when the coil starts to come out of the magnetic gap, it is at this point that any slight distortion of the diffuser can lead to a coil's impact on the core (cylindrical magnetic core in the center of the coil), which leads to the detachment of the winding from the coil frame.
Of course there are exceptions, for example, as Free Air subwoofers, which are designed to work in an open volume, but the efficiency of these subwoofers is very small, it is recommended to install them only as a last resort.Start Subwoofer Box Design
Imagine how much time you will need to calculate the length of a port by its area and the net volume of a box, then calculate the occupied volume by the port, add it to the net internal volume of a box, and only after that, calculate the dimensions of a box, taking into account the material thickness.
Next, you need to draw a box, on paper or in a program, it will take at least 20 minutes. If you want to visualize the resulting drawing in 3D, using SketchUp for example, you will also need at least 15 minutes, given that you have experience with it.
Our online calculator will make a subwoofer box plan, 3D model and other calculations in about 0.025 seconds - we think it's convincing.